chr14-44962726-T-A

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBS1_Supporting

The NM_001308120.2(TOGARAM1):c.305T>A(p.Leu102His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000595 in 1,613,858 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000058 ( 0 hom. )

Consequence

TOGARAM1
NM_001308120.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.14

Variant links:

Genes affected

TOGARAM1 (HGNC:19959): (TOG array regulator of axonemal microtubules 1) Predicted to enable microtubule binding activity. Predicted to be involved in organelle assembly and positive regulation of microtubule polymerization. Predicted to be located in ciliary basal body. Predicted to be active in cilium and microtubule cytoskeleton. Predicted to colocalize with microtubule. Implicated in Joubert syndrome. [provided by Alliance of Genome Resources, Apr 2022]

TOGARAM1 links:

KLHL28 (HGNC:19741): (kelch like family member 28)

KLHL28 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.037323236).

BS1

Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.0000723 (11/152218) while in subpopulation SAS AF= 0.00228 (11/4818). AF 95% confidence interval is 0.00128. There are 0 homozygotes in gnomad4. There are 7 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TOGARAM1	NM_001308120.2 link	c.305T>A	p.Leu102His	missense_variant	Exon 1 of 20	ENST00000361462.7	NP_001295049.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TOGARAM1	ENST00000361462.7 link	c.305T>A	p.Leu102His	missense_variant	Exon 1 of 20	1	NM_001308120.2	ENSP00000354917.2		G3XAE9

Frequencies

GnomAD3 genomes

AF:

0.0000723

AC:

AN:

152100

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00228

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000718

AC:

AN:

250630

Hom.:

AF XY:

0.000111

AC XY:

AN XY:

135632

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000588

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000582

AC:

AN:

1461640

Hom.:

Cov.:

AF XY:

0.0000880

AC XY:

AN XY:

727132

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000974

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000723

AC:

AN:

152218

Hom.:

Cov.:

AF XY:

0.0000941

AC XY:

AN XY:

74424

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00228

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000189

ExAC

AF:

0.0000906

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 28, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.305T>A (p.L102H) alteration is located in exon 1 (coding exon 1) of the FAM179B gene. This alteration results from a T to A substitution at nucleotide position 305, causing the leucine (L) at amino acid position 102 to be replaced by a histidine (H). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.17

BayesDel_addAF

Benign

-0.20

BayesDel_noAF

Benign

-0.16

CADD

Benign

DANN

Benign

0.97

DEOGEN2

Benign

0.044

T;T

Eigen

Benign

-0.073

Eigen_PC

Benign

-0.11

FATHMM_MKL

Benign

0.15

LIST_S2

Benign

0.77

T;T

M_CAP

Benign

0.015

MetaRNN

Benign

0.037

T;T

MetaSVM

Benign

-1.0

PrimateAI

Uncertain

0.60

PROVEAN

Benign

-1.8

N;N

REVEL

Benign

0.15

Sift

Pathogenic

0.0

D;.

Sift4G

Uncertain

0.0040

D;D

Polyphen

0.92

P;P

Vest4

0.27

MutPred

0.28

Loss of stability (P = 0.059);Loss of stability (P = 0.059);

MVP

0.45

MPC

0.22

ClinPred

0.29

GERP RS

2.5

Varity_R

0.45

gMVP

0.57

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over